Window sash apparatus



Jan. 19, 1932. F. 1 MICHAELS WINDOW SASH APPARATUS Filed May '7, 1930 1 z Ala/ll! A 3 23 9 2 m M 2 Wu 7MLW INVENTOR ATTORNEY Patented Jan. 19, 1932 PA ENT OFFICE FRANK L. MIOHAELS, 0F COVINGTON, KENTUCKY WINDOW SASH APPARATUS Application filed May 7,

My invention relates to improvements in metal window sash. One of its objects is to provide improved means to plumb or align one of the sash members with reference to the other sash member and with reference to the sheet of glass held thereby. Another object is to adjust the two sash members so as to compensate for relative differences in the thickness of the glass at different localities. Another object is to provide improved means to support the sheet of glass with reference 'to the sash. Another object is to provide improved means to apply leverage to draw the two sash members toward one another and to adjustably clamp the glass in place between the two sash members. Another object is to adjustably and resiliently clamp the sash members upon the glass, at the same time plumbing one sash member relative to the glass and the other'sash member to afford substantially uniform pressure upon the glass and avoid excessive local pressure upon the glass liable to fracture the glass. Another objectis to provide improved means to resiliently clamp'the sash members upon the glasswhich when once adjusted will retain its adjusted relations, matically alter its adjusted position. My i11 vention also comprises certain details of form and arrangement and combination of components, allof-whichwill be fully set forth in the descriptionof the accompanying drawj ings, in which;

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Fig. '1 isa perspective view, partlylin section'of a metalwmdow sash embodying'my improvements.

Fig. 2 is a perspective view ofone of the draw-bars detached. 7

Fig. 3 is a perspectiveview of one of the shoes detached.

Fig. 4 is a perspective view of a glass centering and Metal window sashes are built up from stamped or extruded metal forms or bars by mitering the bars and uniting the bar sections into annular frame members in pairs, one of which is fitted to the rear of a sheet of glass and the other-to the front of the sheet and the pair of frames locked or clamped together upon the glass: Difliculty is encounand not creep or autoplastic glass supporting block detached. 7

1930. Serial No. 450,481.

tered in plumbing supporting, and clamping one of these sash members with reference to the glass and the other sash member so as to exert substantially uniform and not excessive pressure upon the glass, otherwise the glass is liable to be fractured from uneven and excessive application of pressure. I

I The accompanying drawings illustrate one modification of my invention in which a rear, annular sash member 16 is formed from bar sections of extruded metal, and a front annular sash member 17 is constructed from bar sections of extruded metal of a different cross sectional pattern than the bar sections from which the sash member 16 is constructed.

The sash member 16 forms both the rear or inside face and also the periphery 18 of the sash; The sash member 16 is provided with aplane face 20 to contact with the inside face of the glass 19 near its edges and with an inwardly directed rib or ledge 21. The periphery 18 of member 16 is provided with an in wardly extended dovetail rib 22. Member 18 is also preferably provided with outwardly extended ribs 23, 2a, and 25, which contact with the window frame.

The frame member 17 is provided with an inwardly directed rib or ledge 26 opposite the rib 21. Members 27 of putty or similar material may be employed to seal the glass between the ledges 21 and26. Two or more blocks 62 having dovetail grooves 63. are cut from extruded metal bars and interposed upon ribs 22 between blocks 30 at each side of the frame to serve as supports for the edges of the glass 19, particularly the lower edge thereof, to support the weight of the lass with reference to the sash. Blocks 64 1'9 of soft metal, fiber or similar material are mounted in dovetail grooves in the inner faces of the blocks to engage the edges of the glass.

The sash memberl'? is also provided with a curved rib 28 extending inwardly and downwardly therefrom, which forms with the member 17 a nearly complete cylindrical channel 29. A-bar of extruded metal is cut cross-wise into relatively short sections to form shoes 30' having dove-tail recesses 34 to interlock with, engage and move endwise relative to the member 18 and its dove-tail rib 22 fitted into the dove-tail channels 34 of the shoes 30, and the stop members 33 are engaged by the outer edge of the sash members 17 to adjustablv space the outer edge of the member 17 with reference to the outer 5 edge of sash member 16. Ribs 65 projecting inwardly from members 17, are preferably .employed and engage beneath the stop members 33.

A bar of extruded metal is cut cross-wise .20 into a series of short sections, which serve as draw-bars 40 to draw the inner edges of the sash members 16 and 17 to ether upon opposite edges of the sheet of glass to clamp the glass with an even fit. and substantially uniform pressure upon the glass. In such operation the engagement of the outer edge the sash member 17 at intervals with the stop members 33 constitutes a fulcrum. The draw bars 40 are spaced at intervals along the members 16 and 17 opposite the respective shoes 30. Each draw-bar is held in engagement with the sash member 17 by means of a semi-cylindrical member 41 which engages and slides endwise in the cylindrical channel 29, in which members have a movement endwise, and a limited rocking or rotary movement. The draw-bars 40 are provided with inclined faces or ribs 42 the apex 44: of which ride up and down the inclined faces 31 of the shoes 30. A series of screws 43 are threaded through perforations in the fliflfill'members 16, and the lower ends of said screws bear upon the upper faces of the draw- 40 .to force the apex 44 of said draw- ;sbars down the inclined face of the shoes 30 i and thereb shift the draw-bars 40 endwise fihoreof serve to draw the inner e ss of the two sash members 16 and 17 rmly against opposite sides of the lass in such .so-; manner as to firmly and uni ormly apply pressure between the sash members 16 and 17 andthe glass so as not to be liable to fracture :thgghms, while holding the glass firmly in position. The-heads of the screws 43 are in position to be reached with a screw-driver or wrench from the inside of the sash to clamp the sash members upon the glass with ,auniform tension. In the event of the glass being of greater thickness in some places than to at others about its edges, adjustn'ient of the stop members 33 will enable the inner edges of the sash members to be fitted to such inequalities in the thickness of the glass. The tension required upon the screws 43 to shift 9' the draw-bars along the inclined faces 31 and clamp the sash members together upon the glass is relatively light. The sash members may be readily separated to remove a broken sheet of glass and replace it with an unbroken sheet of glass.

The apparatus herein shown and described is capable of considerable modification within the scope of the claims without departing from the spirit of my invention.

lVhat I claim is:

1. A metal window sash comprising a glass panel, an annular inside sash member, an annular outside sash member, each having a glass engagim face, a plurality of shoe members ad ustable alon guideways relative to one.of said sash mem rs, and each provided with an inclined face, adjustable stop members to locally space said sash members apart at their outer edges, a plurality of draw-bar members adjustable along guideways relative to the opposite sash member and each provided with an engaging face to engage and ride upon the inclined face of one of said shoe members, and adjustable means to force said draw-bar members into engagement with the inclined faces of said shoe members to draw the inner edges of said sash members together upon the edges of said glass panel.

2. A window sash comprising inside and outside sash members, drawbars mounted at one end to one of said sash members to have a pivotal movement, the opposite ends of said drawbars provided with an engaging face adapted to ride up and down an inclined face carried by the opposite sash member, and adjustable means to force the engaging face of said drawbars across said inclined face to draw the two sash members together.

3. A window sash comprising inside and outside sash members, means adjustable locally to space said annular sash members apart proportionately to the thickness of the glass panel engaged, drawbars pivoted at one end to one of said sash members, the opposite end of said drawbars provided with an engaging face adapted to ride up and down an inclined face carried by the opposite sash member, and adjustable means to force the engaging face of said drawbars across said inclin d face to draw the two sash members together.

4. A metal window sash comprising a glass panel, an annular inside member and an annnlar outside sash member each having a glass engaging face and each provided with longitudinal guidew-ays, a plurality of shoe members adjustable along the guideway on the. inside member and secured against lateral movement, each of said shoe members having an inclined face, a plurality of dnawbar members, one end of said drawbars adjustable in the guideway on said outside nmmber, the free end of said drawbars each provided with an engaging face and movable to engage and ride upon the inclined face of one of the shoe ill members, and means to adjustably force said drawbar membersinto engagement with the inclined faces of said shoe members to draw the inner edges of said sash members together upon the edges of said glass panel.

5. A metal window sash comprising a glass panel, an annular inside sash member and an annular outside sash member each having a glass engaging face, a plurality of shoe members adjustable along guide ways relative to one of said sash members and secured against lateral movement, a plurality of drawbar members adjustable along guideways relative to the opposite sash member, said shoes and drawbar members having oppositely inclined engaging faces, and adjustable means to force the inclined faces of said drawbar members into engagement with said shoe members to draw the inner edges of the shoe members together.

6. A metal window sash comprising a glass panel, an annular inside sash member and an annular outside sash member each having a glass engaging face, a series of shoe members adjustable along gpideways relative to one of said sash mem ers, a series of drawbar members adjustable along guideways relative to the opposite sash member, said shoe and drawbar members each having inclined engaging faces, adjustable means to force said drawbar and shoe members into engagement to draw the inner edges of the sash members together, and a series of glass supporting members adjustable along longitudinal guideways relative to one of said sash members.

In testimony whereof I have affixed my signature.

FRANK L. MICHAELS. 

